Assembly of rGO/POM/silver Nanoparticles Films by In-Situ Electrochemical-assisted Reduction:Enhanced Antibacterial Effect
A reduced graphene oxide(rGO)/polyoxometalate(POM)/silver nanoparticles(Ag NPs)composite film{(PEI/rGO)n-Ag@P2W18}fabricated by combining layer self-assembly and in-situ electrochemical-assisted reduction method.The antibacterial effects of{(PEI/rGO)n-Ag@P2W18}composite film for Bacillus subtilis and Glucococcus aureus were investigated by Kirby-Bauer method.Compared with{PEI/Ag@P2W18}n and{PEI/(rGO-Ag@P2W18)}n films prepared by Layer by layer method,the antibacteri-al activity of{(PEI/rGO)3-Ag@P2W18}composite film(17.2 mm for bacteriostatic annulus of Bacillus subtilis)loading monolayer of Ag@P2W18 were higher than the{PEI/Ag@P2W18}3 film(14.8 mm for bacteriostatic annulus of Bacillus subtilis),comparable to the{(PEI/rGO)3-Ag@P2W18}film(17.4 mm for bacteriostatic annulus of Bacillus subtilis)with three layers of Ag@P2W18.The re-sults demonstrated that the antibacterial activity of composite film fabricated by in-situ electrochemical-assisted reduction has been greatly enhanced.
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维普
